2 * av7110_av.c: audio and video MPEG decoder stuff
4 * Copyright (C) 1999-2002 Ralph Metzler
5 * & Marcus Metzler for convergence integrated media GmbH
7 * originally based on code by:
8 * Copyright (C) 1998,1999 Christian Theiss <mistert@rz.fh-augsburg.de>
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
25 * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
28 * the project's page is at https://linuxtv.org
31 #include <linux/types.h>
32 #include <linux/kernel.h>
33 #include <linux/string.h>
34 #include <linux/delay.h>
38 #include "av7110_hw.h"
39 #include "av7110_av.h"
40 #include "av7110_ipack.h"
42 /* MPEG-2 (ISO 13818 / H.222.0) stream types */
43 #define PROG_STREAM_MAP 0xBC
44 #define PRIVATE_STREAM1 0xBD
45 #define PADDING_STREAM 0xBE
46 #define PRIVATE_STREAM2 0xBF
47 #define AUDIO_STREAM_S 0xC0
48 #define AUDIO_STREAM_E 0xDF
49 #define VIDEO_STREAM_S 0xE0
50 #define VIDEO_STREAM_E 0xEF
51 #define ECM_STREAM 0xF0
52 #define EMM_STREAM 0xF1
53 #define DSM_CC_STREAM 0xF2
54 #define ISO13522_STREAM 0xF3
55 #define PROG_STREAM_DIR 0xFF
57 #define PTS_DTS_FLAGS 0xC0
63 #define TRANS_ERROR 0x80
64 #define PAY_START 0x40
65 #define TRANS_PRIO 0x20
66 #define PID_MASK_HI 0x1F
68 #define TRANS_SCRMBL1 0x80
69 #define TRANS_SCRMBL2 0x40
70 #define ADAPT_FIELD 0x20
72 #define COUNT_MASK 0x0F
75 #define DISCON_IND 0x80
76 #define RAND_ACC_IND 0x40
77 #define ES_PRI_IND 0x20
79 #define OPCR_FLAG 0x08
80 #define SPLICE_FLAG 0x04
81 #define TRANS_PRIV 0x02
82 #define ADAP_EXT_FLAG 0x01
84 // adaptation extension flags
86 #define PIECE_RATE 0x40
87 #define SEAM_SPLICE 0x20
90 static void p_to_t(u8 const *buf, long int length, u16 pid,
91 u8 *counter, struct dvb_demux_feed *feed);
92 static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len);
95 int av7110_record_cb(struct dvb_filter_pes2ts *p2t, u8 *buf, size_t len)
97 struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) p2t->priv;
99 if (!(dvbdmxfeed->ts_type & TS_PACKET))
101 if (buf[3] == 0xe0) // video PES do not have a length in TS
103 if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY)
104 return dvbdmxfeed->cb.ts(buf, len, NULL, 0,
105 &dvbdmxfeed->feed.ts);
107 return dvb_filter_pes2ts(p2t, buf, len, 1);
110 static int dvb_filter_pes2ts_cb(void *priv, unsigned char *data)
112 struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) priv;
114 dvbdmxfeed->cb.ts(data, 188, NULL, 0,
115 &dvbdmxfeed->feed.ts);
119 int av7110_av_start_record(struct av7110 *av7110, int av,
120 struct dvb_demux_feed *dvbdmxfeed)
123 struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
125 dprintk(2, "av7110:%p, , dvb_demux_feed:%p\n", av7110, dvbdmxfeed);
127 if (av7110->playing || (av7110->rec_mode & av))
129 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
130 dvbdmx->recording = 1;
131 av7110->rec_mode |= av;
133 switch (av7110->rec_mode) {
135 dvb_filter_pes2ts_init(&av7110->p2t[0],
136 dvbdmx->pesfilter[0]->pid,
137 dvb_filter_pes2ts_cb,
138 (void *) dvbdmx->pesfilter[0]);
139 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
143 dvb_filter_pes2ts_init(&av7110->p2t[1],
144 dvbdmx->pesfilter[1]->pid,
145 dvb_filter_pes2ts_cb,
146 (void *) dvbdmx->pesfilter[1]);
147 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
151 dvb_filter_pes2ts_init(&av7110->p2t[0],
152 dvbdmx->pesfilter[0]->pid,
153 dvb_filter_pes2ts_cb,
154 (void *) dvbdmx->pesfilter[0]);
155 dvb_filter_pes2ts_init(&av7110->p2t[1],
156 dvbdmx->pesfilter[1]->pid,
157 dvb_filter_pes2ts_cb,
158 (void *) dvbdmx->pesfilter[1]);
159 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AV_PES, 0);
165 int av7110_av_start_play(struct av7110 *av7110, int av)
168 dprintk(2, "av7110:%p, \n", av7110);
170 if (av7110->rec_mode)
172 if (av7110->playing & av)
175 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
177 if (av7110->playing == RP_NONE) {
178 av7110_ipack_reset(&av7110->ipack[0]);
179 av7110_ipack_reset(&av7110->ipack[1]);
182 av7110->playing |= av;
183 switch (av7110->playing) {
185 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
188 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
193 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AV_PES, 0);
199 int av7110_av_stop(struct av7110 *av7110, int av)
202 dprintk(2, "av7110:%p, \n", av7110);
204 if (!(av7110->playing & av) && !(av7110->rec_mode & av))
206 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
207 if (av7110->playing) {
208 av7110->playing &= ~av;
209 switch (av7110->playing) {
211 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
214 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
217 ret = av7110_set_vidmode(av7110, av7110->vidmode);
221 av7110->rec_mode &= ~av;
222 switch (av7110->rec_mode) {
224 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
227 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
237 int av7110_pes_play(void *dest, struct dvb_ringbuffer *buf, int dlen)
244 wake_up(&buf->queue);
248 len = dvb_ringbuffer_avail(buf);
250 wake_up(&buf->queue);
253 sync = DVB_RINGBUFFER_PEEK(buf, 0) << 24;
254 sync |= DVB_RINGBUFFER_PEEK(buf, 1) << 16;
255 sync |= DVB_RINGBUFFER_PEEK(buf, 2) << 8;
256 sync |= DVB_RINGBUFFER_PEEK(buf, 3);
258 if (((sync &~ 0x0f) == 0x000001e0) ||
259 ((sync &~ 0x1f) == 0x000001c0) ||
260 (sync == 0x000001bd))
263 DVB_RINGBUFFER_SKIP(buf, 1);
265 blen = DVB_RINGBUFFER_PEEK(buf, 4) << 8;
266 blen |= DVB_RINGBUFFER_PEEK(buf, 5);
268 if (len < blen || blen > dlen) {
269 //printk("buffer empty - avail %d blen %u dlen %d\n", len, blen, dlen);
270 wake_up(&buf->queue);
274 dvb_ringbuffer_read(buf, dest, (size_t) blen);
276 dprintk(2, "pread=0x%08lx, pwrite=0x%08lx\n",
277 (unsigned long) buf->pread, (unsigned long) buf->pwrite);
278 wake_up(&buf->queue);
283 int av7110_set_volume(struct av7110 *av7110, unsigned int volleft,
284 unsigned int volright)
286 unsigned int vol, val, balance = 0;
289 dprintk(2, "av7110:%p, \n", av7110);
291 av7110->mixer.volume_left = volleft;
292 av7110->mixer.volume_right = volright;
294 switch (av7110->adac_type) {
296 volleft = (volleft * 256) / 1036;
297 volright = (volright * 256) / 1036;
302 if ((err = SendDAC(av7110, 3, 0x80 + volleft)))
304 return SendDAC(av7110, 4, volright);
306 case DVB_ADAC_CRYSTAL:
307 volleft = 127 - volleft / 2;
308 volright = 127 - volright / 2;
309 i2c_writereg(av7110, 0x20, 0x03, volleft);
310 i2c_writereg(av7110, 0x20, 0x04, volright);
313 case DVB_ADAC_MSP34x0:
314 vol = (volleft > volright) ? volleft : volright;
315 val = (vol * 0x73 / 255) << 8;
317 balance = ((volright - volleft) * 127) / vol;
318 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
319 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
320 msp_writereg(av7110, MSP_WR_DSP, 0x0006, val); /* headphonesr */
323 case DVB_ADAC_MSP34x5:
324 vol = (volleft > volright) ? volleft : volright;
325 val = (vol * 0x73 / 255) << 8;
327 balance = ((volright - volleft) * 127) / vol;
328 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
329 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
336 int av7110_set_vidmode(struct av7110 *av7110, enum av7110_video_mode mode)
339 dprintk(2, "av7110:%p, \n", av7110);
341 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, LoadVidCode, 1, mode);
343 if (!ret && !av7110->playing) {
344 ret = ChangePIDs(av7110, av7110->pids[DMX_PES_VIDEO],
345 av7110->pids[DMX_PES_AUDIO],
346 av7110->pids[DMX_PES_TELETEXT],
347 0, av7110->pids[DMX_PES_PCR]);
349 ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, Scan, 0);
355 static enum av7110_video_mode sw2mode[16] = {
356 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
357 AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_PAL,
358 AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_NTSC,
359 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
360 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
361 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
362 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
363 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
366 static int get_video_format(struct av7110 *av7110, u8 *buf, int count)
374 dprintk(2, "av7110:%p, \n", av7110);
378 for (i = 7; i < count - 10; i++) {
380 if (p[0] || p[1] || p[2] != 0x01 || p[3] != 0xb3)
383 hsize = ((p[1] &0xF0) >> 4) | (p[0] << 4);
384 vsize = ((p[1] &0x0F) << 8) | (p[2]);
386 ret = av7110_set_vidmode(av7110, sw2mode[sw]);
388 dprintk(2, "playback %dx%d fr=%d\n", hsize, vsize, sw);
397 /****************************************************************************
398 * I/O buffer management and control
399 ****************************************************************************/
401 static inline long aux_ring_buffer_write(struct dvb_ringbuffer *rbuf,
402 const u8 *buf, unsigned long count)
404 unsigned long todo = count;
408 if (dvb_ringbuffer_free(rbuf) < 2048) {
409 if (wait_event_interruptible(rbuf->queue,
410 (dvb_ringbuffer_free(rbuf) >= 2048)))
413 free = dvb_ringbuffer_free(rbuf);
416 dvb_ringbuffer_write(rbuf, buf, free);
424 static void play_video_cb(u8 *buf, int count, void *priv)
426 struct av7110 *av7110 = (struct av7110 *) priv;
427 dprintk(2, "av7110:%p, \n", av7110);
429 if ((buf[3] & 0xe0) == 0xe0) {
430 get_video_format(av7110, buf, count);
431 aux_ring_buffer_write(&av7110->avout, buf, count);
433 aux_ring_buffer_write(&av7110->aout, buf, count);
436 static void play_audio_cb(u8 *buf, int count, void *priv)
438 struct av7110 *av7110 = (struct av7110 *) priv;
439 dprintk(2, "av7110:%p, \n", av7110);
441 aux_ring_buffer_write(&av7110->aout, buf, count);
445 #define FREE_COND_TS (dvb_ringbuffer_free(rb) >= 4096)
447 static ssize_t ts_play(struct av7110 *av7110, const char __user *buf,
448 unsigned long count, int nonblock, int type)
450 struct dvb_ringbuffer *rb;
452 unsigned long todo = count;
454 dprintk(2, "%s: type %d cnt %lu\n", __func__, type, count);
456 rb = (type) ? &av7110->avout : &av7110->aout;
457 kb = av7110->kbuf[type];
462 if (nonblock && !FREE_COND_TS)
465 while (todo >= TS_SIZE) {
469 if (wait_event_interruptible(rb->queue, FREE_COND_TS))
472 if (copy_from_user(kb, buf, TS_SIZE))
474 write_ts_to_decoder(av7110, type, kb, TS_SIZE);
483 #define FREE_COND (dvb_ringbuffer_free(&av7110->avout) >= 20 * 1024 && \
484 dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
486 static ssize_t dvb_play(struct av7110 *av7110, const char __user *buf,
487 unsigned long count, int nonblock, int type)
489 unsigned long todo = count, n;
490 dprintk(2, "av7110:%p, \n", av7110);
492 if (!av7110->kbuf[type])
495 if (nonblock && !FREE_COND)
502 if (wait_event_interruptible(av7110->avout.queue,
509 if (copy_from_user(av7110->kbuf[type], buf, n))
511 av7110_ipack_instant_repack(av7110->kbuf[type], n,
512 &av7110->ipack[type]);
519 static ssize_t dvb_play_kernel(struct av7110 *av7110, const u8 *buf,
520 unsigned long count, int nonblock, int type)
522 unsigned long todo = count, n;
523 dprintk(2, "av7110:%p, \n", av7110);
525 if (!av7110->kbuf[type])
528 if (nonblock && !FREE_COND)
535 if (wait_event_interruptible(av7110->avout.queue,
542 av7110_ipack_instant_repack(buf, n, &av7110->ipack[type]);
549 static ssize_t dvb_aplay(struct av7110 *av7110, const char __user *buf,
550 unsigned long count, int nonblock, int type)
552 unsigned long todo = count, n;
553 dprintk(2, "av7110:%p, \n", av7110);
555 if (!av7110->kbuf[type])
557 if (nonblock && dvb_ringbuffer_free(&av7110->aout) < 20 * 1024)
561 if (dvb_ringbuffer_free(&av7110->aout) < 20 * 1024) {
564 if (wait_event_interruptible(av7110->aout.queue,
565 (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)))
571 if (copy_from_user(av7110->kbuf[type], buf, n))
573 av7110_ipack_instant_repack(av7110->kbuf[type], n,
574 &av7110->ipack[type]);
581 void av7110_p2t_init(struct av7110_p2t *p, struct dvb_demux_feed *feed)
583 memset(p->pes, 0, TS_SIZE);
591 static void clear_p2t(struct av7110_p2t *p)
593 memset(p->pes, 0, TS_SIZE);
600 static int find_pes_header(u8 const *buf, long int length, int *frags)
607 while (c < length - 3 && !found) {
608 if (buf[c] == 0x00 && buf[c + 1] == 0x00 &&
609 buf[c + 2] == 0x01) {
610 switch ( buf[c + 3] ) {
611 case PROG_STREAM_MAP:
612 case PRIVATE_STREAM2:
613 case PROG_STREAM_DIR:
616 case PADDING_STREAM :
618 case ISO13522_STREAM:
619 case PRIVATE_STREAM1:
620 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
621 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
632 if (c == length - 3 && !found) {
633 if (buf[length - 1] == 0x00)
635 if (buf[length - 2] == 0x00 &&
636 buf[length - 1] == 0x00)
638 if (buf[length - 3] == 0x00 &&
639 buf[length - 2] == 0x00 &&
640 buf[length - 1] == 0x01)
648 void av7110_p2t_write(u8 const *buf, long int length, u16 pid, struct av7110_p2t *p)
659 if (buf[c] == 0x00 && buf[c + 1] == 0x01) {
665 if (buf[c] == 0x01) {
675 case PROG_STREAM_MAP:
676 case PRIVATE_STREAM2:
677 case PROG_STREAM_DIR:
680 case PADDING_STREAM :
682 case ISO13522_STREAM:
683 case PRIVATE_STREAM1:
684 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
685 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
691 memcpy(p->pes + p->pos, buf + c, (TS_SIZE - 4) - p->pos);
692 c += (TS_SIZE - 4) - p->pos;
693 p_to_t(p->pes, (TS_SIZE - 4), pid, &p->counter, p->feed);
706 c2 = find_pes_header(buf + c, length - c, &p->frags);
707 if (c2 >= 0 && c2 < (TS_SIZE - 4) - p->pos)
710 l = (TS_SIZE - 4) - p->pos;
711 memcpy(p->pes + p->pos, buf, l);
714 p_to_t(p->pes, p->pos, pid, &p->counter, p->feed);
720 c2 = find_pes_header(buf + c + add, length - c - add, &p->frags);
724 p_to_t(buf + c, c2 - c, pid, &p->counter, p->feed);
732 rest = l % (TS_SIZE - 4);
734 p_to_t(buf + c, l, pid, &p->counter, p->feed);
735 memcpy(p->pes, buf + c + l, rest);
743 static int write_ts_header2(u16 pid, u8 *counter, int pes_start, u8 *buf, u8 length)
748 u8 tshead[4] = { 0x47, 0x00, 0x00, 0x10 };
750 fill = (TS_SIZE - 4) - length;
755 tshead[1] |= (u8)((pid & 0x1F00) >> 8);
756 tshead[2] |= (u8)(pid & 0x00FF);
757 tshead[3] |= ((*counter)++ & 0x0F);
758 memcpy(buf, tshead, 4);
768 for (i = 6; i < fill + 4; i++) {
778 static void p_to_t(u8 const *buf, long int length, u16 pid, u8 *counter,
779 struct dvb_demux_feed *feed)
787 buf[0] == 0x00 && buf[1] == 0x00 && buf[2] == 0x01)
789 case PROG_STREAM_MAP:
790 case PRIVATE_STREAM2:
791 case PROG_STREAM_DIR:
794 case PADDING_STREAM :
796 case ISO13522_STREAM:
797 case PRIVATE_STREAM1:
798 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
799 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
808 memset(obuf, 0, TS_SIZE);
809 if (length - c >= (TS_SIZE - 4)){
810 l = write_ts_header2(pid, counter, pes_start,
811 obuf, (TS_SIZE - 4));
812 memcpy(obuf + l, buf + c, TS_SIZE - l);
815 l = write_ts_header2(pid, counter, pes_start,
817 memcpy(obuf + l, buf + c, TS_SIZE - l);
820 feed->cb.ts(obuf, 188, NULL, 0, &feed->feed.ts);
826 static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len)
828 struct ipack *ipack = &av7110->ipack[type];
830 if (buf[1] & TRANS_ERROR) {
831 av7110_ipack_reset(ipack);
835 if (!(buf[3] & PAYLOAD))
838 if (buf[1] & PAY_START)
839 av7110_ipack_flush(ipack);
841 if (buf[3] & ADAPT_FIELD) {
848 av7110_ipack_instant_repack(buf + 4, len - 4, ipack);
853 int av7110_write_to_decoder(struct dvb_demux_feed *feed, const u8 *buf, size_t len)
855 struct dvb_demux *demux = feed->demux;
856 struct av7110 *av7110 = (struct av7110 *) demux->priv;
858 dprintk(2, "av7110:%p, \n", av7110);
860 if (av7110->full_ts && demux->dmx.frontend->source != DMX_MEMORY_FE)
863 switch (feed->pes_type) {
865 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
869 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
876 return write_ts_to_decoder(av7110, feed->pes_type, buf, len);
881 /******************************************************************************
882 * Video MPEG decoder events
883 ******************************************************************************/
884 void dvb_video_add_event(struct av7110 *av7110, struct video_event *event)
886 struct dvb_video_events *events = &av7110->video_events;
889 spin_lock_bh(&events->lock);
891 wp = (events->eventw + 1) % MAX_VIDEO_EVENT;
892 if (wp == events->eventr) {
893 events->overflow = 1;
894 events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
898 memcpy(&events->events[events->eventw], event, sizeof(struct video_event));
901 spin_unlock_bh(&events->lock);
903 wake_up_interruptible(&events->wait_queue);
907 static int dvb_video_get_event (struct av7110 *av7110, struct video_event *event, int flags)
909 struct dvb_video_events *events = &av7110->video_events;
911 if (events->overflow) {
912 events->overflow = 0;
915 if (events->eventw == events->eventr) {
918 if (flags & O_NONBLOCK)
921 ret = wait_event_interruptible(events->wait_queue,
922 events->eventw != events->eventr);
927 spin_lock_bh(&events->lock);
929 memcpy(event, &events->events[events->eventr],
930 sizeof(struct video_event));
931 events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
933 spin_unlock_bh(&events->lock);
939 /******************************************************************************
940 * DVB device file operations
941 ******************************************************************************/
943 static unsigned int dvb_video_poll(struct file *file, poll_table *wait)
945 struct dvb_device *dvbdev = file->private_data;
946 struct av7110 *av7110 = dvbdev->priv;
947 unsigned int mask = 0;
949 dprintk(2, "av7110:%p, \n", av7110);
951 if ((file->f_flags & O_ACCMODE) != O_RDONLY)
952 poll_wait(file, &av7110->avout.queue, wait);
954 poll_wait(file, &av7110->video_events.wait_queue, wait);
956 if (av7110->video_events.eventw != av7110->video_events.eventr)
959 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
960 if (av7110->playing) {
962 mask |= (POLLOUT | POLLWRNORM);
964 /* if not playing: may play if asked for */
965 mask |= (POLLOUT | POLLWRNORM);
972 static ssize_t dvb_video_write(struct file *file, const char __user *buf,
973 size_t count, loff_t *ppos)
975 struct dvb_device *dvbdev = file->private_data;
976 struct av7110 *av7110 = dvbdev->priv;
979 dprintk(2, "av7110:%p, \n", av7110);
981 if ((file->f_flags & O_ACCMODE) == O_RDONLY)
984 if (av7110->videostate.stream_source != VIDEO_SOURCE_MEMORY)
987 if (get_user(c, buf))
989 if (c == 0x47 && count % TS_SIZE == 0)
990 return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
992 return dvb_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
995 static unsigned int dvb_audio_poll(struct file *file, poll_table *wait)
997 struct dvb_device *dvbdev = file->private_data;
998 struct av7110 *av7110 = dvbdev->priv;
999 unsigned int mask = 0;
1001 dprintk(2, "av7110:%p, \n", av7110);
1003 poll_wait(file, &av7110->aout.queue, wait);
1005 if (av7110->playing) {
1006 if (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
1007 mask |= (POLLOUT | POLLWRNORM);
1008 } else /* if not playing: may play if asked for */
1009 mask = (POLLOUT | POLLWRNORM);
1014 static ssize_t dvb_audio_write(struct file *file, const char __user *buf,
1015 size_t count, loff_t *ppos)
1017 struct dvb_device *dvbdev = file->private_data;
1018 struct av7110 *av7110 = dvbdev->priv;
1021 dprintk(2, "av7110:%p, \n", av7110);
1023 if (av7110->audiostate.stream_source != AUDIO_SOURCE_MEMORY) {
1024 printk(KERN_ERR "not audio source memory\n");
1028 if (get_user(c, buf))
1030 if (c == 0x47 && count % TS_SIZE == 0)
1031 return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1033 return dvb_aplay(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1036 static u8 iframe_header[] = { 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x80, 0x00, 0x00 };
1038 #define MIN_IFRAME 400000
1040 static int play_iframe(struct av7110 *av7110, char __user *buf, unsigned int len, int nonblock)
1043 int progressive = 0;
1046 dprintk(2, "av7110:%p, \n", av7110);
1051 if (!(av7110->playing & RP_VIDEO)) {
1052 if (av7110_av_start_play(av7110, RP_VIDEO) < 0)
1056 /* search in buf for instances of 00 00 01 b5 1? */
1057 for (i = 0; i < len; i++) {
1059 if (get_user(c, buf + i))
1062 progressive = c & 0x08;
1066 match = (match == 1 || match == 2) ? 2 : 1;
1070 case 2: if (c == 0x01)
1073 case 3: if (c == 0xb5)
1076 case 4: if ((c & 0xf0) == 0x10)
1083 /* setting n always > 1, fixes problems when playing stillframes
1084 consisting of I- and P-Frames */
1085 n = MIN_IFRAME / len + 1;
1087 /* FIXME: nonblock? */
1088 dvb_play_kernel(av7110, iframe_header, sizeof(iframe_header), 0, 1);
1090 for (i = 0; i < n; i++)
1091 dvb_play(av7110, buf, len, 0, 1);
1093 av7110_ipack_flush(&av7110->ipack[1]);
1096 return vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1102 static int dvb_video_ioctl(struct file *file,
1103 unsigned int cmd, void *parg)
1105 struct dvb_device *dvbdev = file->private_data;
1106 struct av7110 *av7110 = dvbdev->priv;
1107 unsigned long arg = (unsigned long) parg;
1110 dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1112 if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
1113 if ( cmd != VIDEO_GET_STATUS && cmd != VIDEO_GET_EVENT &&
1114 cmd != VIDEO_GET_SIZE ) {
1119 if (mutex_lock_interruptible(&av7110->ioctl_mutex))
1120 return -ERESTARTSYS;
1124 av7110->videostate.play_state = VIDEO_STOPPED;
1125 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
1126 ret = av7110_av_stop(av7110, RP_VIDEO);
1128 ret = vidcom(av7110, AV_VIDEO_CMD_STOP,
1129 av7110->videostate.video_blank ? 0 : 1);
1131 av7110->trickmode = TRICK_NONE;
1135 av7110->trickmode = TRICK_NONE;
1136 if (av7110->videostate.play_state == VIDEO_FREEZED) {
1137 av7110->videostate.play_state = VIDEO_PLAYING;
1138 ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1142 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY) {
1143 if (av7110->playing == RP_AV) {
1144 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
1147 av7110->playing &= ~RP_VIDEO;
1149 ret = av7110_av_start_play(av7110, RP_VIDEO);
1152 ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1154 av7110->videostate.play_state = VIDEO_PLAYING;
1158 av7110->videostate.play_state = VIDEO_FREEZED;
1159 if (av7110->playing & RP_VIDEO)
1160 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Pause, 0);
1162 ret = vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1164 av7110->trickmode = TRICK_FREEZE;
1167 case VIDEO_CONTINUE:
1168 if (av7110->playing & RP_VIDEO)
1169 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Continue, 0);
1171 ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1173 av7110->videostate.play_state = VIDEO_PLAYING;
1174 av7110->trickmode = TRICK_NONE;
1178 case VIDEO_SELECT_SOURCE:
1179 av7110->videostate.stream_source = (video_stream_source_t) arg;
1182 case VIDEO_SET_BLANK:
1183 av7110->videostate.video_blank = (int) arg;
1186 case VIDEO_GET_STATUS:
1187 memcpy(parg, &av7110->videostate, sizeof(struct video_status));
1190 case VIDEO_GET_EVENT:
1191 ret = dvb_video_get_event(av7110, parg, file->f_flags);
1194 case VIDEO_GET_SIZE:
1195 memcpy(parg, &av7110->video_size, sizeof(video_size_t));
1198 case VIDEO_SET_DISPLAY_FORMAT:
1200 video_displayformat_t format = (video_displayformat_t) arg;
1202 case VIDEO_PAN_SCAN:
1203 av7110->display_panscan = VID_PAN_SCAN_PREF;
1205 case VIDEO_LETTER_BOX:
1206 av7110->display_panscan = VID_VC_AND_PS_PREF;
1208 case VIDEO_CENTER_CUT_OUT:
1209 av7110->display_panscan = VID_CENTRE_CUT_PREF;
1216 av7110->videostate.display_format = format;
1217 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetPanScanType,
1218 1, av7110->display_panscan);
1222 case VIDEO_SET_FORMAT:
1227 av7110->display_ar = arg;
1228 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetMonitorType,
1232 case VIDEO_STILLPICTURE:
1234 struct video_still_picture *pic =
1235 (struct video_still_picture *) parg;
1236 av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY;
1237 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1238 ret = play_iframe(av7110, pic->iFrame, pic->size,
1239 file->f_flags & O_NONBLOCK);
1243 case VIDEO_FAST_FORWARD:
1244 //note: arg is ignored by firmware
1245 if (av7110->playing & RP_VIDEO)
1246 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1247 __Scan_I, 2, AV_PES, 0);
1249 ret = vidcom(av7110, AV_VIDEO_CMD_FFWD, arg);
1251 av7110->trickmode = TRICK_FAST;
1252 av7110->videostate.play_state = VIDEO_PLAYING;
1256 case VIDEO_SLOWMOTION:
1257 if (av7110->playing&RP_VIDEO) {
1258 if (av7110->trickmode != TRICK_SLOW)
1259 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Slow, 2, 0, 0);
1261 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1263 ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1265 ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 0);
1267 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1270 av7110->trickmode = TRICK_SLOW;
1271 av7110->videostate.play_state = VIDEO_PLAYING;
1275 case VIDEO_GET_CAPABILITIES:
1276 *(int *)parg = VIDEO_CAP_MPEG1 | VIDEO_CAP_MPEG2 |
1277 VIDEO_CAP_SYS | VIDEO_CAP_PROG;
1280 case VIDEO_CLEAR_BUFFER:
1281 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1282 av7110_ipack_reset(&av7110->ipack[1]);
1283 if (av7110->playing == RP_AV) {
1284 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1285 __Play, 2, AV_PES, 0);
1288 if (av7110->trickmode == TRICK_FAST)
1289 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1290 __Scan_I, 2, AV_PES, 0);
1291 if (av7110->trickmode == TRICK_SLOW) {
1292 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1295 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1297 if (av7110->trickmode == TRICK_FREEZE)
1298 ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 1);
1302 case VIDEO_SET_STREAMTYPE:
1310 mutex_unlock(&av7110->ioctl_mutex);
1314 static int dvb_audio_ioctl(struct file *file,
1315 unsigned int cmd, void *parg)
1317 struct dvb_device *dvbdev = file->private_data;
1318 struct av7110 *av7110 = dvbdev->priv;
1319 unsigned long arg = (unsigned long) parg;
1322 dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1324 if (((file->f_flags & O_ACCMODE) == O_RDONLY) &&
1325 (cmd != AUDIO_GET_STATUS))
1328 if (mutex_lock_interruptible(&av7110->ioctl_mutex))
1329 return -ERESTARTSYS;
1333 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1334 ret = av7110_av_stop(av7110, RP_AUDIO);
1336 ret = audcom(av7110, AUDIO_CMD_MUTE);
1338 av7110->audiostate.play_state = AUDIO_STOPPED;
1342 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1343 ret = av7110_av_start_play(av7110, RP_AUDIO);
1345 ret = audcom(av7110, AUDIO_CMD_UNMUTE);
1347 av7110->audiostate.play_state = AUDIO_PLAYING;
1351 ret = audcom(av7110, AUDIO_CMD_MUTE);
1353 av7110->audiostate.play_state = AUDIO_PAUSED;
1356 case AUDIO_CONTINUE:
1357 if (av7110->audiostate.play_state == AUDIO_PAUSED) {
1358 av7110->audiostate.play_state = AUDIO_PLAYING;
1359 ret = audcom(av7110, AUDIO_CMD_UNMUTE | AUDIO_CMD_PCM16);
1363 case AUDIO_SELECT_SOURCE:
1364 av7110->audiostate.stream_source = (audio_stream_source_t) arg;
1367 case AUDIO_SET_MUTE:
1369 ret = audcom(av7110, arg ? AUDIO_CMD_MUTE : AUDIO_CMD_UNMUTE);
1371 av7110->audiostate.mute_state = (int) arg;
1375 case AUDIO_SET_AV_SYNC:
1376 av7110->audiostate.AV_sync_state = (int) arg;
1377 ret = audcom(av7110, arg ? AUDIO_CMD_SYNC_ON : AUDIO_CMD_SYNC_OFF);
1380 case AUDIO_SET_BYPASS_MODE:
1381 if (FW_VERSION(av7110->arm_app) < 0x2621)
1383 av7110->audiostate.bypass_mode = (int)arg;
1386 case AUDIO_CHANNEL_SELECT:
1387 av7110->audiostate.channel_select = (audio_channel_select_t) arg;
1388 switch(av7110->audiostate.channel_select) {
1390 ret = audcom(av7110, AUDIO_CMD_STEREO);
1392 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1393 i2c_writereg(av7110, 0x20, 0x02, 0x49);
1394 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1395 msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0220);
1398 case AUDIO_MONO_LEFT:
1399 ret = audcom(av7110, AUDIO_CMD_MONO_L);
1401 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1402 i2c_writereg(av7110, 0x20, 0x02, 0x4a);
1403 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1404 msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0200);
1407 case AUDIO_MONO_RIGHT:
1408 ret = audcom(av7110, AUDIO_CMD_MONO_R);
1410 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1411 i2c_writereg(av7110, 0x20, 0x02, 0x45);
1412 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1413 msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0210);
1422 case AUDIO_GET_STATUS:
1423 memcpy(parg, &av7110->audiostate, sizeof(struct audio_status));
1426 case AUDIO_GET_CAPABILITIES:
1427 if (FW_VERSION(av7110->arm_app) < 0x2621)
1428 *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1430 *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_DTS | AUDIO_CAP_AC3 |
1431 AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1434 case AUDIO_CLEAR_BUFFER:
1435 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1436 av7110_ipack_reset(&av7110->ipack[0]);
1437 if (av7110->playing == RP_AV)
1438 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1439 __Play, 2, AV_PES, 0);
1445 case AUDIO_SET_MIXER:
1447 struct audio_mixer *amix = (struct audio_mixer *)parg;
1448 ret = av7110_set_volume(av7110, amix->volume_left, amix->volume_right);
1452 case AUDIO_SET_STREAMTYPE:
1459 mutex_unlock(&av7110->ioctl_mutex);
1464 static int dvb_video_open(struct inode *inode, struct file *file)
1466 struct dvb_device *dvbdev = file->private_data;
1467 struct av7110 *av7110 = dvbdev->priv;
1470 dprintk(2, "av7110:%p, \n", av7110);
1472 if ((err = dvb_generic_open(inode, file)) < 0)
1475 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1476 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1477 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1478 av7110->video_blank = 1;
1479 av7110->audiostate.AV_sync_state = 1;
1480 av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1482 /* empty event queue */
1483 av7110->video_events.eventr = av7110->video_events.eventw = 0;
1489 static int dvb_video_release(struct inode *inode, struct file *file)
1491 struct dvb_device *dvbdev = file->private_data;
1492 struct av7110 *av7110 = dvbdev->priv;
1494 dprintk(2, "av7110:%p, \n", av7110);
1496 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1497 av7110_av_stop(av7110, RP_VIDEO);
1500 return dvb_generic_release(inode, file);
1503 static int dvb_audio_open(struct inode *inode, struct file *file)
1505 struct dvb_device *dvbdev = file->private_data;
1506 struct av7110 *av7110 = dvbdev->priv;
1507 int err = dvb_generic_open(inode, file);
1509 dprintk(2, "av7110:%p, \n", av7110);
1513 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1514 av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1518 static int dvb_audio_release(struct inode *inode, struct file *file)
1520 struct dvb_device *dvbdev = file->private_data;
1521 struct av7110 *av7110 = dvbdev->priv;
1523 dprintk(2, "av7110:%p, \n", av7110);
1525 av7110_av_stop(av7110, RP_AUDIO);
1526 return dvb_generic_release(inode, file);
1531 /******************************************************************************
1532 * driver registration
1533 ******************************************************************************/
1535 static const struct file_operations dvb_video_fops = {
1536 .owner = THIS_MODULE,
1537 .write = dvb_video_write,
1538 .unlocked_ioctl = dvb_generic_ioctl,
1539 .open = dvb_video_open,
1540 .release = dvb_video_release,
1541 .poll = dvb_video_poll,
1542 .llseek = noop_llseek,
1545 static struct dvb_device dvbdev_video = {
1548 .readers = 5, /* arbitrary */
1550 .fops = &dvb_video_fops,
1551 .kernel_ioctl = dvb_video_ioctl,
1554 static const struct file_operations dvb_audio_fops = {
1555 .owner = THIS_MODULE,
1556 .write = dvb_audio_write,
1557 .unlocked_ioctl = dvb_generic_ioctl,
1558 .open = dvb_audio_open,
1559 .release = dvb_audio_release,
1560 .poll = dvb_audio_poll,
1561 .llseek = noop_llseek,
1564 static struct dvb_device dvbdev_audio = {
1568 .fops = &dvb_audio_fops,
1569 .kernel_ioctl = dvb_audio_ioctl,
1573 int av7110_av_register(struct av7110 *av7110)
1575 av7110->audiostate.AV_sync_state = 0;
1576 av7110->audiostate.mute_state = 0;
1577 av7110->audiostate.play_state = AUDIO_STOPPED;
1578 av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1579 av7110->audiostate.channel_select = AUDIO_STEREO;
1580 av7110->audiostate.bypass_mode = 0;
1582 av7110->videostate.video_blank = 0;
1583 av7110->videostate.play_state = VIDEO_STOPPED;
1584 av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1585 av7110->videostate.video_format = VIDEO_FORMAT_4_3;
1586 av7110->videostate.display_format = VIDEO_LETTER_BOX;
1587 av7110->display_ar = VIDEO_FORMAT_4_3;
1588 av7110->display_panscan = VID_VC_AND_PS_PREF;
1590 init_waitqueue_head(&av7110->video_events.wait_queue);
1591 spin_lock_init(&av7110->video_events.lock);
1592 av7110->video_events.eventw = av7110->video_events.eventr = 0;
1593 av7110->video_events.overflow = 0;
1594 memset(&av7110->video_size, 0, sizeof (video_size_t));
1596 dvb_register_device(&av7110->dvb_adapter, &av7110->video_dev,
1597 &dvbdev_video, av7110, DVB_DEVICE_VIDEO, 0);
1599 dvb_register_device(&av7110->dvb_adapter, &av7110->audio_dev,
1600 &dvbdev_audio, av7110, DVB_DEVICE_AUDIO, 0);
1605 void av7110_av_unregister(struct av7110 *av7110)
1607 dvb_unregister_device(av7110->audio_dev);
1608 dvb_unregister_device(av7110->video_dev);
1611 int av7110_av_init(struct av7110 *av7110)
1613 void (*play[])(u8 *, int, void *) = { play_audio_cb, play_video_cb };
1616 for (i = 0; i < 2; i++) {
1617 struct ipack *ipack = av7110->ipack + i;
1619 ret = av7110_ipack_init(ipack, IPACKS, play[i]);
1622 av7110_ipack_free(--ipack);
1625 ipack->data = av7110;
1628 dvb_ringbuffer_init(&av7110->avout, av7110->iobuf, AVOUTLEN);
1629 dvb_ringbuffer_init(&av7110->aout, av7110->iobuf + AVOUTLEN, AOUTLEN);
1631 av7110->kbuf[0] = (u8 *)(av7110->iobuf + AVOUTLEN + AOUTLEN + BMPLEN);
1632 av7110->kbuf[1] = av7110->kbuf[0] + 2 * IPACKS;
1637 void av7110_av_exit(struct av7110 *av7110)
1639 av7110_ipack_free(&av7110->ipack[0]);
1640 av7110_ipack_free(&av7110->ipack[1]);